β¨ Energy Reliability Performance Measures
22 NOVEMBER 2006 NEW ZEALAND GAZETTE, No. 146 4213
Requirement 21
Disclosure of reliability performance measures
- Total number of interruptions:
| Network or generation owner | Interruption class | Classification of interruptions | 2006 | 2005 | 2004 | 2003 |
|---|---|---|---|---|---|---|
| Orion | B | Planned shutdowns | 288 | 316 | 241 | 356 |
| Orion | C | Unplanned cuts | 499 | 462 | 403 | 611 |
| Transpower | A | Planned shutdowns | - | 2 | 4 | 0 |
| Transpower | D | Unplanned cuts | 5 | 5 | 8 | 4 |
Total interruptions: | 792 | 785 | 656 | 971 |
Interruption classes E, F and G do not apply to the company and consequently results are all zero.
2 & 3 Interruption targets:
| Network or generation owner | Interruption class | Classification of interruptions | 2007 | Average 2007 - 2011 |
|---|---|---|---|---|
| Orion | B | Planned shutdowns | 385 | 385 |
| Orion | C | Unplanned cuts | 555 | 555 |
- Proportion of 2006βs Class C interruptions not restored within:
(a) 3 hours 36.0%
(b) 24 hours 1.2%
5(a) Faults per 100 circuit-km of electric line:
| Voltage | 2006 | 2005 | 2004 | 2003 |
|---|---|---|---|---|
| 66kV | 2.2 | 1.2 | 0.0 | 4.4 |
| 33kV | 2.9 | 3.8 | 2.0 | 3.9 |
| 11kV | 9.2 | 8.5 | 7.7 | 11.6 |
| All | 8.6 | 8.0 | 7.1 | 10.9 |
(b) & (c) Target number of faults per 100 circuit-km of electric line:
| Voltage | 2007 | Average 2007 - 2011 |
|---|---|---|
| 66kV | 2.0 | 2.0 |
| 33kV | 4.0 | 4.0 |
| 11kV | 12.0 | 12.0 |
| All | 11.2 | 11.2 |
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 2006, No 146
Gazette.govt.nz —
NZ Gazette 2006, No 146
β¨ LLM interpretation of page content
π
Disclosure of reliability performance measures
(continued from previous page)
π Trade, Customs & IndustryEnergy Reliability, Interruption Statistics, Performance Measures, Electricity Supply, Orion, Transpower